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三節棍
Author:
chen mingchuan
GeoGebra
New Resources
兩位數加法
算柱 (兩位數)
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
四邉形 (四年級) 教師版
Discover Resources
GGB11
拋物線
時鐘
雙曲線2-交點法
k的几何意义
Discover Topics
Subtraction
Intersection
Confidence Interval
Reflection
Real Numbers